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Finding the Fourth Proportional to 73,107.56, 100,978.40 and 52,932.49

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Solution

The fourth proportional to 73,107.56, 100,978.40 and 52,932.49 is: 73,111.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,107.56 : 100,978.40 = 52,932.49 : x
  2. Step 2: Convert to fraction form
    73,107.56/100,978.40 = 52,932.49/x
  3. Step 3: Cross multiply
    73,107.56x = 100,978.40 × 52,932.49
  4. Step 4: Simplify right side
    73,107.56x = 5,345,038,148.22
  5. Step 5: Solve for x
    x = 5,345,038,148.22/73,107.56
  6. Step 6: Final answer
    x = 73,111.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.